Vanish Napi San Stain Remover a good price to by in bulk.
Doesn't really go off so maybe stock up if you need it.
Removes 100 stains (Tested on cotton with pretreat and wash as per usage instructions). Safe on everyday fabrics (everyday fabrics like cotton and polycotton), colours and whites. Powder fabric stain remover. Just add one scoop in every wash. Suitable for colours & whites. Always follow garment manufacturers' instructions. Soak colours separately from whites. Only use on washable colourfast fabrics. Always check for colourfastness first by soaking or pre-treating a hidden part of the garment for 2 hours. Items which are colourfast in normal washing may run if soaked for 2 hours. Items which are colourfast in normal washing may run if soaked for a time, even in water alone. Better than detergent alone on common stains like coffee, tea, red wine, grass and beetroot. Powder fabric stain remover. Just add one scoop in every wash.